Extension-table



N UNITED NsTATEs PATENT oEEicE.

i LEwIs THoRN, OE PHILADELPHIA, PENNsrLvANIA.`

EXTENSION-TABLE.

Specification of Letters Patent No. 7,997, dated March 25, 1851.

declare that the following is a full and eXact description thereof.

To enable others skilled in the art to make and use my invention, I willproceed to de scribe the construction and operation of the same. l l lIn the i accompanying drawings, which form a pa-rt of thisspecification,`.`Figure l is a perspective view. Fig. 2 top `section ofone end of the table. lig.` 3 side section.

A7 center pillar; B, top; C, side rails; D, plank fastened to the top ofA and having guides Q upon which guides the rails C can move up anddown. E, center rails fastened to D and having tongues to fit in thegrooves of F, F,rail connected to E E by tongues and grooves, `and tothe cross bars Gr by a vbolt being passed up through G, the head ofwhich bolt works in a slot in the underside of F. I, folding railsconstructed and i arranged in such a manner that the joints between thelegs J and the bearing on the center or plank D are in line, renderingthe rails much stiffer than they would be if out of line; andthe railsare also so arranged that the legs J will fold into the` center A whenthe table` is closed, and swingout as near the outside as desirable whenthe table is extended, thereby rendering the table firmer than it wouldbe with the legs at or near the center. Dotted lines K lever connectedto a rock shaft, the ends of which shaft are tted in the rails C.

Upon the opposite side of the shaft are arms L having projections at theends, which projections bear upon plates; the plates are fastened to D.The object of this arrangement is to raise the top B thereby making aspace between B and-ID for the reception of the loose leaves, when thetable is closed the leavesbeing slid in on top of the folding rails I,N, lever the fulcrum of which is on D. `O, connecting rod from N to P.P, catch which hooks in the opposite part of the center A and holds thetable together when closed. By pressing upon the lever N so as to throwthe hook P down it is disengaged from the opposite side.

The leavesto fill up the space between the ends B are made in the usualmanner.

Having thus fully described the construc-

